Lead Infrastructure Engineer required by an innovative and rapidly evolving technology business that delivers critical voice, cloud and connected care solutions across the UK. Due to continued growth, they are looking to appoint an experienced Lead Infrastructure Engineer to take ownership of complex infrastructure environments and act as a senior escalation point across cloud, SIP and systems operations.This is a fantastic opportunity for a technically strong infrastructure professional who enjoys solving high-level technical challenges, mentoring support teams, and driving operational improvements across enterprise-scale environments.The RoleAs the Lead Infrastructure Engineer, you will play a pivotal role in maintaining and enhancing critical cloud, network and communication systems. Working closely with internal teams and third-party suppliers, you''ll lead complex troubleshooting activities, improve system resilience, and support the evolution of the wider technical operations function.You''ll be involved in:Leading third-line technical escalations across cloud, server and network environmentsManaging and optimising SIP-based communications platformsSupporting AWS infrastructure and cloud-native servicesPerforming deep root-cause analysis and performance optimisationTroubleshooting complex VoIP, SIP signalling and call quality issuesSupporting Linux server environments and infrastructure operationsWorking within ITIL-driven service management frameworksMentoring and ..... full job details .....